Hercules Chemical Co. hired Robert P. Aleman Jr. as technical support specialist. He will interact with plumbers, wholesalers and end users through the company’s technical help desk and Web site regarding products and their applications. Prior to this, Aleman held a partnership with Imperial Plumbing & Heating, owned Dutch Aleman’s Mechanical Contractors, and held a maintenance engineer position in the Union County Vocational Technical School District. A 30-year plumbing industry veteran, he currently teaches plumbing courses in the Adult Division at Passaic County Technical Institute.